Selective signaling device.



R. N. HILL.

SELECTIVE SIGNALING DEVICE.

APPLICATION FILED AUG. 7, 1912.

' Patented Jan. 26, 1915.

2 SHEETS-SHEET 1.

//7 ve forr Ra/ph NZ Hill.

R. N. HILL. SELEGTIVE SIGNALING DEVICE. APPL I GATION FILED we. 7, 1912.1,126,009, Patented Jan126, 1915.

Fig. 4.

W /M M zmm :- cbsmg mechanism; 2w sii'mit clesing 1 mmmatic n]. 11 cans2 circuit; niiih This inx'ren'im 10 jug; devices, and 1.0m W. and"parbf/nQffi}? selective devim z a 1, i: v -1 l dQsigmates a ,in :1certain paw etm'm" which is ya inverted U-shafpe (summation of. sin-ram;5 having; susn arz ed therein fiwo Elses gnal g feinzzftev referred toL5 The sbj ct 0'? {v A magnet respec- 22 s lecfive dm'i 1 865 bfileaththe ma; be cm nuihd. with :1 Einu mm" @matures 3 9 impukew of v acte'rs-51 arms 10 and 11 Continuum-11 the armatl res 2r telegraph 3" me 5.Mountns'on 12 carrystall r mounted 60min 30x1 4219mm 11 1 1 ie armsleil5 and 6V in engage- 01' um: pawl 13, and mun-king 1112 mg tinengagement and 11016331 1, respeei iv- 1'? pivotal whet whaal a unmet Jk 5 111118 18 car- 30 The arm 16 e Hno 0? me -geme11t with a pivpressedpawi 20 also W th. frame 18 fer the 1m, u imih. The armaezi iii Itsinogxsrative mg 21 secured at at its other Springs 24 r in"; ends withmspectiveiy are LIA xands adjustable Zi rely wanted in carried by sup-:ne members of the screw 15 H1 l V .ari'sspoi'lfiing armature 51CEK'AQ'Z'LQPS the upper 0210?.1ng: trmature. The

acts \1 2 v e corla thereof. up a? the'sle pun file side iii? of theframe 5 and. has mounted between its members a ratchet wheels 43 and 44,in position to be engaged by the pawls l3 and 17 hereinafter designatedas the stepping and holding pawls respectively. The ratchet wheel 43 iscarried by a sleeve 45 secured to the shaft 42, and there is supportedupon the same sleeve as the ratchet wheel 43, a contact carrying device46 consisting of a segment of a "disk and having mounted on one face andnear the periphery thereof, projections or pins 47, 48, 49 and 50.Secured to the outer end of the shaft 42 is a coil spring 53 adapted toreturn said shaft to its normal position. A protecting cover 54 isprovided with means for securing it to the frame member 41 in positionto cover the spring 53. The contact point 56 carried by the contactdevice 46 is arranged so that the rotation of the ratchet wheel 43through a given are will bring said contact point 56 into ongagementwith a contact spring 57 carried by the ,frame 18. As shown more clearlyin Figs. 2 and 3 the springpressed pawl 20 is pivotally mounted upon theouter face of the frame member 41 and has a concave portion 60projecting through an opening in said frame member 41 into positionwhere it may be brought into engagement with the pins 47 48, 49 and 50of the contact device 46. The ratchet wheel 44 is loosely mounted uponthe shaft 42 and carries a contact spring in position to engage acontact spring 66 mounted adjacent to the contact spring 57 butinsulated therefrom. The hub of the ratchet wheel 44 carries a weight 67for the purpose of returnin' said ratchet wheel to normal position. 0thof the ratchet wheels 43 and 44 are provided with concentricallyarranged slots 70 and 71 through which project a pin 72 secured at oneend of the frame member 40 for the purpose of limiting the movement ofsaid wheels 43 and 44. An adjusting screw 75 carried in a projection 76of the frame member 40 engages the stepping pawl 18 to control itsengagement with the ratchet wheels. The closure of the contacts 56 and57 completes circuit for a signaling device 80 as shown on Fig. 4 of thedrawing, while the closure of the contacts 65'and 66 closes a shortcircuit of the stepping magnet 6, thus preventing the operation of theselecting device after these latter contacts are closed.

Referring now to the o oration of the device, it will be assumed t atthe particular combination to which thesclector responds after closingthe signaling contacts,

rotatable shaft 42 carrying duri which time the circuit is open meccedeby two short impulses and a fourth pause during which time the circuitis succeeded by three more impulses. e holding and stepping magnetsbeing connected in series, the first impulse through these magnets willpull up both armatures, the operation of the armature 9 releasin thestepping and holding pawls 13 and 1 v, and the operation of the armature8 carrying the stepping pawl into on agement with acting magnet, thespace between succeeding impulses will be insulficient to permit it todrop back, so that the retaining paw 17 will be constantly in engagementwith ratchet wheels 43 and 44 except when Jzhe circuit is open for asuflicient length of time to rmit said armature 9 to return to normaposition. This being the case, the two succeedin impulses will advancethe ratchet w eels two steps farther and if the circuit is o n at thistime for a sufiicient len h of time to permit the release of the hol inmagnet armature, the concave portion arm 0 will move into enga ment withe first projection or pin 47 o the contact device 46, thus. holdingthis contact device and with it the ratchet wheel 43 in the position towhich it is advanced by the first series of impulses. The holding pawl17, however, is withdrawn from engagement with the ratchet wheels 43 and44 and the ratchet wheel 44'will return to normal position by reason ofthe weight 67. In a like manner the next four impulses of thecombination will advance the ratchet wheel 43 and contact device 46 toposition whereby the release of the holding magnet will bring the pawl20 into engagement with the projection or pin 48, again permitting theratchet wheel 44 to return to its normal position. This operation willbe continued until the pawl 20 has successively engaged, each of thepins or projections 47, 48, 49 and 50 of the contact device 46 whereuponthe succeeding impulses will move the contact point 56 into engagementwith the contact spring 57 thus completing the circuit for tie signal80. It will be noted that the pawl 20 when in either of its extremepositions is out of the path of movement of the projections or pins 47,48, 49 and 50, thus permittin the ratchet wheel 43 to return to normaposition when the circuit the pawl 20 being released'b theicence.

opening occurs at any except the one determined the positions of thepins in the contact device l6. If now, however, a succession ofquiclcinipulses continued for a :1 number of times he sent over the lineand through the selector magnets, these impulses Will to step both theratchet wheels 3 and l-laround, until the contacts 85 and 6? controlledby the ratchet wheel iiare closed.

net of the selector is short, circuitcd and will not obtain sul'licientcurrent to operate, thus ellectually preventing the closing ofthesignaling contacts by means of a suc- CBSSIOD'Of rapidly occurringimpulses. This trated in connection with an ordinary toleby-step circuitclos .ing to return said circuit closing device tograph line it will benoted that the electroinagnets 6 and 7 are connected in series with asounder 86 and a local battery 87 adapted to he closed through the frontcontact of an ordinary Morse relay 91 in series with the line Telegraphkeys 88, 88 are also connected in the line 85 for operating the Morserelay 91. At each of the stations at which is located a selector, thereare provided impulse transmitting devices 90 for sending the necessarycombination of current impulses for closing the contacts 56 and 57 ofthe selector and operating the sig 112.1 80.

I claim:

1. In a. selective signaling device, a ste mg device, means tendnormalposition, stepping and holding mag nets adapted when energized toadvance said circuit. closing device to a predetermined position Ill'ilresponse to current impulscs, and means operated in the (leencrgiza-tiouof said magnets to retain said circuit closing device in if advancedposition.

2. In a elective signaling device. a stepby-step circuit closing device,stepping and holding pavvls for {advancing said circuit closing deviceto a predetermined position; stepping and holding magnets forcontrolling the operation of said stepping and holding' pawls, and meanscontrolled by said holding magnet in its release to retain. said circuitclosing device in its advanced position. I

3. In a selective signaling device, a rotatable ratchet Wheel, stoppingand holding pewls therefor, stepping and holding mag-- When this occursthe stepping magnets for said pawls adapted when energized to cause sahlpavvls to engage said ratchet wheel, a contact carrying device movable\\'i (.11 said ratchet wheel, and means controlled by said hold ngmagnet for controlling the advancement of said contact cairving device.

In a selective signaling device. a rot-ciahlc ratchet wheel, steppingand holding pnwls therefor. stepping; and holding mag- Dots for saidpawls adapted when energized to cause said pau'ls to engagesaid ratchetwheel. a contact carrying? segment movable with said ratchet wheel and aretaining do vice controlled by said holding magnetv for controlling the5. In a selective signaling device. a rotatable ratchet Wheel, steppingand holding pawls therefor, ste ping and holding magnets for controllingsaid pawls, a contact carrying so lent movable with said ratchet wheel,proje Mons carried hv said segment, a holding device aim-mal out of thepath of movement of, said projections, and operative connections betweensaid holding device and said holding magnet for (Haiti-oiling theengagement of said holding de vice with said 6. In selective signaling(levihe/a rotatable ratchet \vheel. stepping and holding pawls therefor.stopping and holding magnets for pawls. a contact carrying devicemovable with said ratchet wheel, projections carried by said contactcarrying device, and u holiling device for said contact carrying devicemovable under control of said holding magnet angles to the path ofmovement of said projections and adapted in its movements to en agepredetermined ones of said projec tions.

7. In a selective signaling device a rotatable ratchet, Wheel, stoppingand holding paivls therefor, stopping and holding magnets for saidpavvls, a contact carrying device movable vvith said ratchet wheel,project-ions carried by said Contact. carrying ilevicc, a spring pressedpivotal holding device located adjacent said contact carrying device andnorn'ially out of the path of movement of said projections and meanscontrolled hv the a rmaturc of said holding mag-- not upon the releasethereof for brin 'ing the sz'iid holding device into engagement with theprojections on said contact carrying dcvicc-at preileterininedposit-ions thereof.

3. in a selective signaling device. "electro magnets, a rotatableratchet Wheel, a signalins circuit. means operated by said magnets inresponse to :1 predcl'cu'uiincd comhination of current impulses foradvancing said ratchet Wheel a predetermined distance, acontract-carrvingr device moved by said ratchet Wheel, to close saidsignaling circuit, a disabling circuit for one of said magnets, contactsfor said (lisahling circuit, and

advancement of said segment/ e I E in a path at right means operated bysaid electroniagnets in response to. current impulses differing incharacter from the first-mentioned impulses for closing the contacts ofsaid disabling circuit.

9. In a selective signaling device, electromagnets, a ratchet wheel, asignaling circuit, means open-tail by said ma ets in re sponse to aredetermined com ination of current impu ses for advancing said ratchetwheel a predetermined distance, a contactcarrying device moved by saidratchet wheel to close said signaling circuit, a second ratchet wheelmoved to a predetermined position by said electromagnets in response toimpulses difl'ering in character from the first-mentioned impulses, andcontacts closed by said second ratchet wheel.

10. In a selective signaling device, two separately operatedcircuit-closing devices, circuits controlled thereby, and electromagnetic operating means common to both said circuit closing devices andresponsive to differing combinations of current impulses for operatingsaid circuit-closing devices to close their respective circuits.

11. In a selective signaling device a pair of independently operablecircuit closing devices, advancing and holding means common to saidcircuit closing devices, and elec tromagnetic means for controlling saidadvancing and holding means, said circuit closing devices being operatedby said elec tromagnetic means in res onse to current impulses ofrespectively di erent characters.

12. In a selective signaling device, a pair of ratchet .wheels, steppingand holding pa-Wls common to said ratchet wheels, elec tromagneticcontrolling means for said pawls, and circuit closing devices carried bysaid ratchet wheels and operable independently of each other by saidelectromagnetic means in response to different combinations of currentimpulses.

13. In a selective signaling device, a rotatable ratchet wheel, steppingand holding pawls therefor, stepping and holding magnets for controllingsaid pawls, a contact carrying device movable with said ratchet Wheel,means operated by said holding magnet for controlling the advancement ofand contact carrying device to circuit closing position, a secondratchet wheel operated by said pan-ls independently of the controllingmeans of the contact device, and a second contact device carried by saidsecond ratchet wheel.

145111 a selective signaling device, a shaft, two ratchet wheels mountedupon said shaft, stepping: and holding pawls common to said ratchetwheels, electromagnetic controlling means for said pawls for advancingsai ratchet wheels in response to predetermined current impulses,circuit-closing contacts controlled by said ratchet wheels. and meanswhereby the contacts controlled by one of said ratchet wheels are closedbythe operation of said electromagnetic controlling devices in responseto predetermined current impulses through said electromagnets, and thecontacts controlled by the other of said ratchet wheels are closed bythe operation of said electromagnetic controlling means in response tocurrent impulses of a char acter differing from that required toclosethe said first-mentioned contacts.

In witness whereof, I hereunto subscribe my name this (3th day of Auust, A. D. 1919.

. RAL H N. HILL.

Witnesses Curran F. llorraux, ELLA linii'an.

